Actually on closer inspection, I'm not sure what she's actually praying for - is she wanting the money to buy the shoes? Is she wanting somebody to get the shoes for her? Or just she actually expect god to get the shoes for her?

......................................ok......................uhm still I wonder how tat came up with that specific prayer to begin with. This doesn't need an answer_________________
Remember Love others Love oneself

I'll give you one anyway.
The prayer has been around for nearly a century, obviously, and was crafted by a well-known and respected Christian theologian, so it has made its way into popular culture. Bill Watterson parodied it in Calvin and Hobbes a while back. So it's not now, nor has it ever been, the exclusive property of AA, though they make much use of it.
I think Tat is contrasting Monique's search for contentment (panel 2) with her inherent shallowness and greed (panel 3) and then has her realize what she's doing and try to make up for it. Of course it doesn't work that way._________________'What about it, K9?' 'Insufficient data, Master.' 'Yeah, you never &@?#!$% know the answer when it's important.'

......................................ok......................uhm still I wonder how tat came up with that specific prayer to begin with. This doesn't need an answer

Everyone who grew up in a religious environment knows that prayer.... Toolbag._________________Scire aliquid laus est, pudor est non discere velle
"It is laudable to know something, it is disgraceful to not want to learn"
~Seneca